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Free peptide tracker & calculator

Every dose on time, and the math done right.

Reminders, a step-by-step reconstitution calculator, vial inventory and plain-English guides. Free, private, and built for people on a prescribed protocol.

Start tracking freeBrowse 46 peptides
No account needed on webNot medical adviceWe don't sell peptides

Try it: dose to syringe units

–units to draw
–mL per dose
–doses per vial






What the tracker does
Everything a protocol needs, in one place
Open the tracker
Free dose reminders
Daily, weekly or every X days. Get a heads-up before each dose, plus missed-dose and low-vial alerts.
Math you can check
Turns your prescribed dose into mL and syringe units, and shows every step so you can verify it.
Site rotation
A body map remembers where you injected last and suggests the next spot.
Vial inventory
Tracks how much is left, doses remaining and the discard date on your label.
Progress tracking
Weight, waist, protein, water and side effects in one chart.
Plain-English library
46 peptides with FDA status labels, plus 80+ guides written for real people.


How it works
Set up in two minutes


  1. Add your protocol
    Pick the peptide and enter the dose, vial size and water amount from your prescription.
  2. Get reminders
    Choose the schedule and reminder time. Add it to Google Calendar for a free backup alert.
  3. Log and track
    Tap "Log" after each dose. PepSteady rotates sites, counts what's left in the vial and charts your progress.


Peptide library
Know the FDA status before you start
Every entry is labeled FDA-approved, investigational or not FDA-approved, with what the research actually shows.
See all 46
Semaglutide
FDA-approved (Rx)
Weekly GLP-1 agonist. Brand names Ozempic, Wegovy, Rybelsus (oral).
Tirzepatide
FDA-approved (Rx)
Weekly GIP/GLP-1 agonist. Brand names Mounjaro, Zepbound.
Retatrutide
Investigational
Triple-agonist in clinical trials. Not approved.
Tesamorelin
FDA-approved (Rx)
GHRH analog. Brand name Egrifta.
BPC-157
Not FDA-approved
Studied mainly in animals. Not FDA-approved for human use.
GHK-Cu
Not FDA-approved
Copper peptide. Common in cosmetics; injectable use not FDA-approved.
CJC-1295
Not FDA-approved
GHRH analog. Not FDA-approved.
NAD+
Not FDA-approved
Coenzyme, not a peptide. Often sold alongside peptides.


From the blog
Guides worth reading first
All 80 articles
Reconstitution & Injection
Reconstitution Math: 10 Worked Examples
Ten step-by-step peptide reconstitution math examples: concentration, mL to draw and U-100 syringe units, with a U-40 warning and a reverse check.
6 min readGLP-1 Medications
Semaglutide vs. Tirzepatide: Side-by-Side Comparison
Semaglutide vs tirzepatide side by side: how they work, FDA-approved brands and uses, head-to-head trial results, side effects and questions to ask.
5 min readReconstitution & Injection
How to Read a U-100 Insulin Syringe
Learn how to read a U-100 insulin syringe: what the unit lines mean, how 100 units equals 1 mL, and how 0.3, 0.5 and 1 mL barrels are marked differently.
5 min readNutrition & Lifestyle
How Much Protein Do You Need on a GLP-1?
How much protein do you need on a GLP-1? Learn the ranges experts suggest during weight loss, how to do the math for your body, and easy ways to reach it.
5 min readRecovery & Immune Peptides
BPC-157: What the Research Actually Says
BPC-157 research explained: mostly animal studies, very little human data, no FDA approval, and where its 2026 compounding status stands in plain English.
5 min readLegal & FDA
Are Peptides Legal in the US?
Are peptides legal in the US? A plain-English look at FDA-approved peptides, compounding rules, the 2026 FDA peptide review and 'research use only' products.
5 min read


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FAQ
Questions people ask
Is PepSteady free?
Yes. The tracker, reminders, calculator, tools and library are free. An optional Pro plan with Apple Watch and extra features is coming with the iPhone app.
Are you doctors?
No. We are not doctors, pharmacists or a medical provider. PepSteady is informational only and never recommends doses.
Do you sell peptides?
No. We don't sell peptides or any medication. We link to licensed telehealth providers and pharmacies.
Where is my tracker data stored?
In the web version, your data stays in your own browser on your device. Accounts with sync arrive with the iPhone app.


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Informational only. We are not doctors. PepSteady does not give medical advice, diagnose, or recommend doses, and we do not sell peptides. Always follow your licensed healthcare provider and pharmacist.